Description
- This classic novelty drinking bird is a scientific wonder
- Dip head in water and the liquid inside will flow upside down to make Duncan bob
- This seemingly simple device uses the principles of thermodynamics to maintain a constant bobbing motion
Product Specifications
Aprox. Dimensiones (Embalaje): 19 (H) x 5 (W) x 5 (D) cm / 7,4 (H) x 2 (W) x 1,8 (D) pulgadas.| Length : 4.5 cm | Width : 5 cm |
| Height : 18.5 cm |
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